Finding the Fourth Proportional to 403,749,122.60, 605,623,683.90 and 131,147,445.80
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Solution
The fourth proportional to 403,749,122.60, 605,623,683.90 and 131,147,445.80 is: 196,721,168.70
Step by Step Solution
- Step 1: Write the proportion equation
403,749,122.60 : 605,623,683.90 = 131,147,445.80 : x - Step 2: Convert to fraction form
403,749,122.60/605,623,683.90 = 131,147,445.80/x - Step 3: Cross multiply
403,749,122.60x = 605,623,683.90 × 131,147,445.80 - Step 4: Simplify right side
403,749,122.60x = 79,425,999,259,471,584 - Step 5: Solve for x
x = 79,425,999,259,471,584/403,749,122.60 - Step 6: Final answer
x = 196,721,168.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.